From 8ddea729178845b309d409fe762aced71d9d95e0 Mon Sep 17 00:00:00 2001
From: mstembera <5421953+mstembera@users.noreply.github.com>
Date: Thu, 16 Jul 2026 08:19:23 +0200
Subject: [PATCH] Add -fno-ipa-cp-clone for mingw

Add -fno-ipa-cp-clone for mingw just as we do for gcc.  I get about a 1% speedup.  My machine is pretty unreliable for bench so maybe someone can verify.

closes https://github.com/official-stockfish/Stockfish/pull/6973

No functional change
---
 src/Makefile | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/Makefile b/src/Makefile
index c45f0d1db..4f9a27ab4 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -681,6 +681,8 @@ ifeq ($(COMP),gcc)
 	else
 		CXXFLAGS += -Wstack-usage=128000 -fno-ipa-cp-clone -fconstexpr-ops-limit=500000000
 	endif
+else ifeq ($(COMP),mingw)
+	CXXFLAGS += -fno-ipa-cp-clone
 endif
 
 ### On mingw use Windows threads, otherwise POSIX